Any information about where you bought it or how long ago you bought it? Honestly it looks like the many generic dinosaurs they sell at Walmart, Target or Amazon.

Here's a set from Amazon: https://www.amazon.com/Boley-Pack-Educational-Dinosaur-Toys/dp/B01LC751Z8/ref=sxin_16_pa_sp_search_thematic_sspa?content-id=amzn1.sym.4e7a2229-074e-44de-95c4-9fd858f46295%3Aamzn1.sym.4e7a2229-074e-44de-95c4-9fd858f46295&crid=19TCG1XY5YB9O&cv_ct_cx=brown%2Bplastic%2Bdinosaur&keywords=brown%2Bplastic%2Bdinosaur&pd_rd_i=B01LC751Z8&pd_rd_r=2c474642-911c-4cd9-9747-6b9add1dddd2&pd_rd_w=RkAve&pd_rd_wg=kTqaq&pf_rd_p=4e7a2229-074e-44de-95c4-9fd858f46295&pf_rd_r=NRZRVD61N1S1B4SFY1NW&qid=1668635033&sprefix=brown%2Bplastic%2Bdinosaur%2Caps%2C216&sr=1-1-a73d1c8c-2fd2-4f19-aa41-2df022bcb241-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9zZWFyY2hfdGhlbWF0aWM&th=1

Here's a set from Walmart: https://www.walmart.com/ip/Prextex-Realistic-Looking-10-Dinosaurs-Pack-of-12-Large-Plastic-Assorted-Dinosaur-Figures/711248208?wmlspartner=wlpa&selectedSellerId=9169

The Amazon one looks more like the one your kid has.